256811

Diisobutylaluminum hydride

reagent grade

• Synonym(s): DIBAL, DIBAL-H
• Linear Formula: [(CH₃)₂CHCH₂]₂AlH
• CAS Number: 1191-15-7
• Molecular Weight: 142.22
• Beilstein: 4123663
• EC Number: 214-729-9
• MDL number: MFCD00008928
• UNSPSC Code: 12352001
• PubChem Substance ID: 24855552
• NACRES: NA.22

Properties

• grade: reagent grade
• Quality Level: 100
• reaction suitability: reagent type: reductant
• bp: 116-118 °C/1 mmHg (lit.)
• density: 0.798 g/mL at 25 °C (lit.)
• SMILES string: [H][Al](CC(C)C)CC(C)C
• InChI: 1S/2C4H9.Al.H/c2*1-4(2)3;;/h2*4H,1H2,2-3H3;;
• InChI key: AZWXAPCAJCYGIA-UHFFFAOYSA-N

Description

General description

Diisobutylaluminum hydride is commonly used as a reducing agent in organic synthesis.

Application

Diisobutylaluminum hydride can be used in the following protocols:

• As a promotor of Tishchenko reaction of aldehydes.
• Conversion of benzylidene acetals of 1,2-and 1,3-glycols to the corresponding monobenzyl ethers of the glycols.
• To generate a novel chiral reducing agent based on (S)-proline for the asymmetric reduction of prochiral ketones.

Packaging

Supplied in a Sure/Pac^™ cylinder and has a 1/4-turn bronze ball valve with a female 1/4" NPT outlet thread (Z122661) installed. Before using the cylinder, ensure that the valve is closed, then remove carbon steel plug that seals the outlet valve.

Compatible with the following:

• Aldrich^® Sure/Pac^™ station for liquefied gases Z566446
• PTFE Sealing tape Z104388 or Z221880
• Straight septum-inlet adapter Z118141 with septa Z565687 or Z565695.

For instructions please refer to technical bulletin AL-136: The Aldrich Sure/Pac^™ Cylinder System

Legal Information

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

Sure/Pac is a trademark of Sigma-Aldrich Co. LLC

Safety Information

• Pictograms: GHS02,GHS05
• Signal Word: Danger
• Hazard Statements: H250 - H260 - H314
• Precautionary Statements: P210 - P231 + P232 - P280 - P303 + P361 + P353 - P305 + P351 + P338 - P370 + P378
• Hazard Classifications: Eye Dam. 1 - Pyr. Liq. 1 - Skin Corr. 1B - Water-react 1
• Supplementary Hazards: EUH014
• Storage Class Code: 4.2 - Pyrophoric and self-heating hazardous materials
• WGK: nwg
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves